Working aggregate, more particularly for soil cultivation |
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| 申请号 | US36922073 | 申请日 | 1973-06-12 | 公开(公告)号 | US3884310A | 公开(公告)日 | 1975-05-20 |
| 申请人 | VYZK USTAV ZEMEDELSKYCH STROJU; | 发明人 | SOUCEK JOSEF; BRAZDA ZDENEK; GRECENKO ALEXANDR; | ||||
| 摘要 | The working aggregate comprises a working unit supporting working tools and suspended on lifting arms between a front and a rear power unit for swinging movement about vertical connecting pins. The working unit can be positively deflected in relation to the power units, to assume either a transport position in which all three units are in alignment, or a working position, in which the working unit is deflected sideways relative to the power units, to assume the required working width. Driving through curves are facilitated by a positively controlled turning mechanism arranged on the rear power unit. All members are adapted for remote control from the driver''s seat on the front power unit. | ||||||
| 权利要求 | 1. A working aggregate for soil cultivation comprising in combination: a working unit for supporting tools vertically, and horizontally pivoted between two power units comprising: a. a front power unit, b. a rear power unit, c. said working unit supporting working tools, d. means for swingably mounting said working unit at one end thereof on the front power unit and means for swingably mounting said working unit at the other end thereof on the rear power unit so that the said working unit is suspended between the front and rear power units, e. first lifting means attached to the working unit and to the front power unit and second lifting means attached to the working unit and the rear power unit for lifting the working unit in relation to the front and rear power units into transport position and to lower the working unit into operative position, said second working means comprising a turntable mounted on the rear power unit, a rear lifting arm journalled to said turntable, a rear transverse rod mounted in said rear lifting arm and an implement holder attached to the said rear transverse rod and rotatably connected to the working unit, f. deflecting means attached to the working unit and to the rear power unit for positively deflecting the working unit in relation to the front and rear power units into axial alignment for transport purposes and out of alignment for operation. 2. Working aggregate as in claim 1, wherein at least one adjustable abutment is arranged between the rear lifting arm and the frame of the rear power unit. 3. Working aggregate as in claim 1, wherein a rear abutment spring is mounted between the rear transverse rod and the implement holder. 4. A working aggregate as in claim 1, wherein the turntable is connected by means of at least one control cylinder-and-piston unit to the rear power unit and is equipped with connecting eyelets by means of which it is journalled to the rear lifting arm which is provided with a bifurcation at its lower end, in which the rear transverse rod is secured. 5. A working aggregate as in claim 4, wherein a longitudinal inclined pin passes through the rear transverse rod, connecting said transverse rod to a rear yoke of the implement holder, a lifting cylinder-and-piston unit being mounted between said implement holder and the rear lifting arm, the axis of the longitudinal inclined pin passing through the center of the connecting joint, which joins the lower end of the lifting cylinder-and-piston unit to the implement holder. 6. A working aggregate as in claim 1, wherein the implement holder is connected by means of a vertical connecting pin to the main carrier of the working unit, at least one actuating cylinder-and-piston unit being pivoted between said implement holder and the main carrier. 7. A working aggregate as in claim 6, wherein a lock is provided between the implement holder and the main carrier to lock the main carrier in its position in relation to the implement holder. 8. Working aggregate as in claim 1, wherein the working unit is pivoted by means of its main carrier and a vertical front connecting pin to a front yoke which is pivotally attached by means of a longitudinal front pin to a transverse front lifting rod, mounted in the front lifting arms of the front power unit. 9. Working aggregate as in claim 8, wherein a balancing spring is mounted between the transverse front lifting rod and the front yoke. |
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